feat: Enhance collection sharing and location management features

- Implemented unsharing functionality in CollectionViewSet, including removal of user-owned locations from collections.
- Refactored ContentImageViewSet to support multiple content types and improved permission checks for image uploads.
- Added user ownership checks in LocationViewSet for delete operations.
- Enhanced collection management in the frontend to display both owned and shared collections separately.
- Updated Immich integration to handle access control based on location visibility and user permissions.
- Improved UI components to show creator information and manage collection links more effectively.
- Added loading states and error handling in collection fetching logic.

backend/server/adventures/permissions.py

@@ -81,8 +81,13 @@ class IsOwnerOrSharedWithFullAccess(permissions.BasePermission):
             # If user in shared_with of any collection related to obj
             if hasattr(obj, 'collections') and obj.collections.filter(shared_with=user).exists():
                 return True
+            # **FIX: Check if user OWNS any collection that contains this object**
+            if hasattr(obj, 'collections') and obj.collections.filter(user=user).exists():
+                return True
             if hasattr(obj, 'collection') and obj.collection and obj.collection.shared_with.filter(id=user.id).exists():
                 return True
+            if hasattr(obj, 'collection') and obj.collection and obj.collection.user == user:
+                return True
             if hasattr(obj, 'shared_with') and obj.shared_with.filter(id=user.id).exists():
                 return True
             return False
@@ -92,9 +97,14 @@ class IsOwnerOrSharedWithFullAccess(permissions.BasePermission):
             return True
         if hasattr(obj, 'collections') and obj.collections.filter(shared_with=user).exists():
             return True
+        # **FIX: Allow write access if user owns any collection containing this object**
+        if hasattr(obj, 'collections') and obj.collections.filter(user=user).exists():
+            return True
         if hasattr(obj, 'collection') and obj.collection and obj.collection.shared_with.filter(id=user.id).exists():
             return True
+        if hasattr(obj, 'collection') and obj.collection and obj.collection.user == user:
+            return True
         if hasattr(obj, 'shared_with') and obj.shared_with.filter(id=user.id).exists():
             return True
 
-        return False
+        return False